text: Crookes's life was one of unbroken scientific activity that extended over sixty-seven years. He was considered remarkable for his industriousness and for his intellectual qualities. 
  His experiments in chemistry and physics were known for the originality of their design, and he is considered a "superb experimentalist". His interests, ranging over pure and applied science, economic and practical problems, and psychic research, made him a well-known personality and earned him a substantial income. He received many public and academic honours.